Solstrejf voiceboard frontpanel
KamikazeVildsvin·Solstrejf·pcb/solstrejf-voiceboard-frontpanel/solstrejf-voiceboard-frontpanel.kicad_pcb
About the Solstrejf voiceboard frontpanel PCB
Solstrejf voiceboard frontpanel is an open source PCB design by KamikazeVildsvin, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 41.2 × 123.4 mm, with 27 components from 17 distinct parts.
Other key parts include the TL972IP. By type, the board carries 10 resistors, 3 connectors, 2 capacitors, 1 IC, 1 switch and 1 diode.
It belongs with the audio and robotics & motion designs in this gallery.
From the project
4 voice analog sinewave drone oscillator with modmatrix
I wanted the instrument to be playful and interactive. Four sine wave oscillators in itself are maybe not that interesting and can become static. A modulation matrix, which would allow for all four voices to modulate parameters like frequency and amplitude on all other voices would create more complex soundscapes. The basic idea and block diagram can be seen above, where four identical voice boards are connected to the mod-matrix board and a power supply/mixer board for output summation.

Main components on the Solstrejf voiceboard frontpanel
Solstrejf voiceboard frontpanel bill of materials (BOM)
27 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL972IP | DIP-8_W7.62mm_Socket | U1 |
| 1 | Conn_02x08_Odd_Even | IDC-Header_2x08_P2.54mm_Vertical | J1 |
| 1 | PIR Connector | PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | SJ335052B | SJ335052B | J3 |
| 7 | B10k | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1, RV2, RV3, RV4, RV5, RV6, RV8 |
| 1 | B10k | Potentiometer_Alpha_slide_pot_30mm | RV7 |
| 1 | 100k | Potentiometer_Bourns_3296Y_Vertical | RV9 |
| 1 | TRIG | SW_SPST_Omron_B3F-40xx | SW1 |
| 1 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 2 | 100n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C22, C23 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 4 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R5, R8, R10 |
| 1 | 56k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 130k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 51k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 240k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
Solstrejf voiceboard frontpanel design files
The KiCad project lives in the KamikazeVildsvin/Solstrejf repository on GitHub; these links point at the commit this page was built from.
Solstrejf voiceboard frontpanel: common questions
How big is the Solstrejf voiceboard frontpanel PCB?
The Solstrejf voiceboard frontpanel measures 41.2 × 123.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Solstrejf voiceboard frontpanel?
27 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Solstrejf voiceboard frontpanel design files?
From the KamikazeVildsvin/Solstrejf repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Solstrejf voiceboard frontpanel design in my own project?
Yes, under the terms of its GPL-3.0 license, which KamikazeVildsvin chose for the repository.
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